Improvement in revolving fire-arms



\ F. D. NEWBURY.

Revolver.

No. 27,868. Pa/vented Apr. '10, 1860 Inventor.

UNITED? STATES.

PATENT. OFFIcR.

FREDERICK 1). NEWBURY, or ALBANY, NEW YORK, ASSIGNOR TO RICHARD v. DEWITT, JR, oRsAME PLACE.

IM PROVEMENT IN REVOLVING Fl RE-AR M S.

Specification forming part of Letters Patent No. 27,868, dated April 10,1860.

To all whom it may concern:

Be it known that I, FREDERICK -D. NEW:

BURY, of the city of Albany, State ofNew l Toward itsfront edge ispivoted a bar or link, =f, which'by'it's other notched end, fitted to apin, 19, upon the trigger, maintains the connec- York, have inventedcertain Improvementsin the Oonstructionof Fire-Arms; and I declare thefollowing specification, withthedrawings hereto attached as part ofthe-same, to be a full and perfect description of my invention.

Figure 1 represents in profile the skeletonframe of the handle of apistol, the covering plate and wooden gripes being removed, to show themechanism of the lock, the'position of its parts being as ready forfiring-by the trigger. Fig. 2 is the representationof the parts with thehammer cocked and ready for firin Fig. 3 is a perspective view, showingthe mechanism in reverse of Fig. 2. Fig. 4is a diagram to show apeculiar method of attaching the mainspring to the hammer.

Similar letters in all the figures denote the same parts of theapparatus.

My invention applies directly to revolvers, but may be used to someextent in the locks of common fire-arms.

A is the skeleton stock frame, holding the usual revolving cylinder, 0.This cylinder turns upon a shaft or axis, X, extending through itslength, carefully fitted,so that the cylinder can be easily slipped fromit, but by a feather and slot, pin and notch, or other convenientdevice, so fitted that the revolution of Xshall carry the cylinder withit. The front end of the shaft rests within a cross-bar, Y, forming theend of the frame A, and its rear end through the face plate or bar D,behind and against which it carries the ratchet wheel B, firmly attachedto it, (the shaft.) Bythis wheel the cylinder is turned through theaction of shaped leverV and the trigger T. The edge of wheel R is cutinto ratchet-teeth corresponding with the number of chambers in thecylinder-five for a fiveshooter, six for a sixshooter.

The trigger T, shaped as shown in the drawings, is pivoted to the frameat c, and has projecting from its upper back corner a limb, a, fitted toconform to the space between the teeth of B, so that when the trigger isheld back in the act of firingthat is, is moved a little back of itsposition, as shown in Figs. 2 and 3-it shall block the wheel, holdingthe bores of the chamber and barrel in line with each other.

The hammer H is pivoted to the lrame at h.

'tion of hammer and trigger, so that the drawingof the latter shallthrowthe former bacle Toward the bottom of the hammer the ward.

balancecatch-lever g is pivoted, having at its front'end ahook or catchfittedto hold onto 1), its back end being so shapedthat when by-the-movemcnt of thehammer it is thrown forward it can be canted upwardby-a projection in the frame or pin placed at m for the purpose. Thismovement is to direct the hook end toward the pin 1), as hereinafterexplained, and for the same purpose the back end of the lever is stoppedby appropriate means upon or against the hammer.

To guide the movements of bar f, it has a pin, d, projecting backthrough a slot, it, made through the trigger, and against this pin aspring, u, Fig. 2, attached to the frame, is arranged to press the notchof the bar over pin 19 when hammer and trigger are both down, as in Fig.1.

The -shaped lever V is attached to the frame behind the hammer, and isoperated by a pin, k, projecting from the end' of limb or of thetrigger, as shown in Fig. 3. It has a small spring lying behind it,which cannot be shown in the drawings, to keep it pressed habitually upfrom the frame toward the trigger.

The trigger T is kept in its proper position,

when at rest, by sear-spring Z.

The operation of the mechanism is as follows: The cylinder being loadedand capped and the parts of the lock in the position shown in Fig.1, apull upon the trigger, pressing upon pin p, throws the hammer backwardby the barf, and continues to move it back until the progress of thebottom of the hammer carries lever g so far forward that it passesunderpin p, when it tripsffrom the pin and the hammer falls. During thismovement the upper limb of lever V, lifted by the pink on the trigger,passes under and presses up one of the teeth of the wheel R, turning thecylinder until one of the chambers is in range, or nearly so, with thebore of the barrel, bringingacone and cap in the range of the hammer,the last movement of the trigger bringing its end a firmly against andblocking thewheel as the hammer falls. As soon as the trigger isrelieved it is thrown back by the searspring, and in its progressdownward .pin It, pressing upon the lower limb of V, carries the upperlimb downward along and below the ratchettooth, against which itlaid,and is then bythe pressure of the spring beneath it thrown underthe tooth, ready to lift it on the next pull of the trigger. At the sametime barf, forced by the action of spring it upon pin 01, takes itsplace upon pin 19, and all is ready for another fire.

This piece can also be cooked by hand, for it will be seen that byraising the hammer the trigger will follow until lever 9 trips when, asthe hammer is held from falling at themstant of the trip, time is givenfor the catch at the end of g to slip over pin 19 and hold the triggerfrom falling back until it is pressed by the finger back a smalldistance, which lifts the pin until it is disengaged from the hook, whenthe hammer falls and the trigger falls back to it first position.

What I claim, and desire to secure by Letters Patent, is-

1. The apparatus for enabling the hammer and trigger to be operated inconcert with each other, whether the hammer be set by hand or by thetrigger.

2. The bar f, attached to the hammer and working along the side of thetrigger in order to catch into the pin p, in combination with thebalance catch -1ever g, operating as described.

3. Pin d in bar f, operating through the slot t, and in combination withit and spring u, or the mechanical equivalents for said apparatus, thewhole operating together in manner and for the purposes set forth.

4. The combined action of the trigger and pin 76 with lever V inoperating the cylinder, so that when the lever has turned the cylin' derto bring a chamber in it and the barrel to coincide the toe or frontpoint, a, of the trigger shall, jointly with the pin 70 and the lever V,hold the cylinder during the discharge of the piece, in the mannerherein shown and described.

F. D. NE WBURY.

